Caitlin Dempsey

Caitlin Dempsey is the editor of Geography Realm and holds a master's degree in Geography from UCLA as well as a Master of Library and Information Science (MLIS) from SJSU.

Highest Permanent Settlement in the World

Caitlin Dempsey

Located at 5,000 meters (3 miles) above sea level, La Rinconada in southeastern Peru is the highest permanent settlement in the world.

Arctic Permafrost is Now Releasing More Carbon Than it Stores

Caitlin Dempsey

The researchers found that the Arctic region has transitioned from a carbon sink to a source of carbon emissions. ย 

Which Country Has the Most High Speed Rail Lines?

Caitlin Dempsey

While China only started developed its HSR network in 2003, it has quickly become the country with the most high speed rail lines.

Artificial Intelligence Was Used to Discover a New Nasca Line

Caitlin Dempsey

Researchers tested out the use of artificial intelligence to assist with finding new Nasca lines.

hydrothermal pools and terraces of Dallol, Ethiopia. Photo: Kotopoulou Electra, Wikipedia, CC BY-SA 4.0

A Place on Earth Where No Life Exists

Caitlin Dempsey

Researchers recently discovered at least one location on Earth that lacks any discernible life forms. ย 

How New York City is Protecting Its Subway System Against Flooding

Caitlin Dempsey

A flex-gate is a highly flexible covering that can be quickly deployed to protect a subway's entrance and underground structures in the event of a flood.

View From Space: Australia’s Wildfires

Caitlin Dempsey

Theย Moderate Resolution Imaging Spectroradiometerย (MODIS) on NASAโ€™s Aqua satellite acquired a natural-color image acquired this image of smoke rising from wildfires burning in New South Wales (NSW) and Queensland.

Small-scale Deforestation is on the Rise in the Amazon

Caitlin Dempsey

Researchers analyzed forest loss rates across the entire Amazon between 2001 and 2014.ย 

I’m a…. the GIS Profession in One Word

Caitlin Dempsey

How do you describe GIS as a profession in as few words as possible?

Formation of ice balls (diameter 5โ€“10 cm) in Stroomi Beach, Tallinn, Estonia. Image: Aleksandr Abrosimov, Wikimedia

How Ice Balls Form

Caitlin Dempsey

When conditions are just right, a strange phenomenon called ice balls or ice eggs can form along beaches during the winter months.

Comparative maps for modeling flood risk for (a) the Pearl River Delta, China; (b) Bangladesh; (c) Jakarta, Indonesia; and (d) Bangkok, Thailand. Maps: Kulp & Strauss, 2019.

Researchers Estimate Triples the Number of People Affected by Sea Level Rise

Caitlin Dempsey

New estimates from Climate Central estimate that 340 million to 480 million people would be affected by flooding in coastal areas due to sea level rise.

What is the Difference Between an Earthquake Swarm and Aftershocks

Caitlin Dempsey

Learn about the difference between an earthquake swarm and an aftershock.

Researchers from NASA's Jet Propulsion Laboratory (JPL) mapped out sources of methane emission across California. Source: NASA/JPL

Mapping Out California’s Methane Emissions

Caitlin Dempsey

With half of the methane emissions originating from human activities, researchers from NASA wanted to map out point-source emitters in California to understand where the highest volume of methane emissions occur.

PennVet Uses GIS to Identify Disease Hot Spots

Caitlin Dempsey

Dr. Meghann Pierdonย with the University of Pennsylvaniaโ€™s School of Veterinary Medicine has developed a secure website that uses GIS to map out the incident of diseases among pigs or birds.

Largest Expanse of Sand in Ukraine

Caitlin Dempsey

Located in southern Ukraine is the largest sand area in the country.

Fastest Thinning Glacier

Caitlin Dempsey

Hielo Patagรณnico Sur 12 (HPS-12) in Patagonia is believed to be the fastest thinning glacier in the world.

New Report Values Economic Benefits of Landsat Archive at $3.45 billion

Caitlin Dempsey

A newly released report from the USGS has estimated the 2017 domestic and international economic benefits of Landsat imagery ย to be $3.45 billion. ย 

Earliest Published Research Linking Carbon Dioxide with Global Warming

Caitlin Dempsey

163 years ago, Eunice Newton Foote was the first scientist to research the link between increased carbon dioxide and a warmer atmosphere.

Map: Andriy Yaremenko, How to create Lego Map Style in QGIS

How to Use GIS to Make a Lego Map

Caitlin Dempsey

Depending on the GIS software you want to use, there are a few different ways to create a Lego-style map.

First High Resolution Map of the U.S. Food Supply Chain

Caitlin Dempsey

A team of researchers used data from several federal sources and the Oak Ridge National Laboratory to produce the first high resolution map of how food moves around the United States.

Portable GIS

Caitlin Dempsey

Portable GIS is a collection of open source GIS software applications and tools that can be run from a portable drive.

This satellite image shows a phytoplankton bloom stretching along the Malvinas Current for hundreds of miles. Image: MODIS, NASA, 28-December-2017.

Malvinas Current

Caitlin Dempsey

The Malvinas Current is a cold water current that flows northward along Patagonia's Atlantic coast.

Haloarchaea are salt-loving microorganisms that impart the pink and red colors of Lake Natron in Tanzania. Image: Landsat 8 acquired March 6, 2017.

This Lake is Home to the Highest Concentrations of Lesser Flamingos in East Africa

Caitlin Dempsey

The protective salt marshes that ring Lake Natron in Tanzania have nurtured the highest concentrations of lesser and greater flamingos in East Africa.

Online Landslide Inventory Mapping Tool

Caitlin Dempsey

The USGS has launched an online web map that compiles existing United States landslide data into a searchable tool called theย U.S. Landslide Inventory Map.

Amery Iceberg. Source: CC BY-SA 3.0 IGO

An Iceberg the Size of Greater London Has Broken Off Amery Ice Shelf in Antarctica

Caitlin Dempsey

An iceberg the size of Greater London recently broke off the from Amery Ice Shelf in Antarctica. ย 

A LIDAR tree profile.

Help Identify Tree Stems from Drone Data

Caitlin Dempsey

The Tree Mapping project uses crowd sourcing to accurate identify tree stems from laser scanning point cloud data acquired via UAV.

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